imu "buffer length" is zero

Question

I have a differential drive mobile robot.

I am using mpu9250 IMU with this package jeskesen /i2c_imu

thr tf_tree is as shown in link text

the tf_tree show that the imu :

"Average rate" is 10000,

"Buffer length" is zero,

"Oldest transform" is zero ,

Edit 1 : The imu frame comes from mpu9250 IMU "it is the real imu" not from robot_state_publisher.

and what is deference between my tf_tree link text and others project in this links link text link text link text

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Originally posted by Ahmed_Desoky on ROS Answers with karma: 23 on 2020-09-07

Post score: 1

Answer 1

The tf_tree shows buffer zero because I activate the imu_link and base_link transformation in the urdf file.

and this overwrite the real imu package transformation.

When I deactivate "comment" this transformation from urdf file. It is works and the imu buffer is 0.697.

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Originally posted by Ahmed_Desoky with karma: 23 on 2020-09-09

This answer was ACCEPTED on the original site

Post score: -1